Home / 125,341,963.48-172,972,535.64-78,326,337.43

Finding the Fourth Proportional to 125,341,963.48, 172,972,535.64 and 78,326,337.43

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Solution

The fourth proportional to 125,341,963.48, 172,972,535.64 and 78,326,337.43 is: 108,090,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,341,963.48 : 172,972,535.64 = 78,326,337.43 : x
  2. Step 2: Convert to fraction form
    125,341,963.48/172,972,535.64 = 78,326,337.43/x
  3. Step 3: Cross multiply
    125,341,963.48x = 172,972,535.64 × 78,326,337.43
  4. Step 4: Simplify right side
    125,341,963.48x = 13,548,305,191,796,476
  5. Step 5: Solve for x
    x = 13,548,305,191,796,476/125,341,963.48
  6. Step 6: Final answer
    x = 108,090,736.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.