Home / 120,953.60-181,387.20-42,070.40

Finding the Fourth Proportional to 120,953.60, 181,387.20 and 42,070.40

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Solution

The fourth proportional to 120,953.60, 181,387.20 and 42,070.40 is: 63,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,953.60 : 181,387.20 = 42,070.40 : x
  2. Step 2: Convert to fraction form
    120,953.60/181,387.20 = 42,070.40/x
  3. Step 3: Cross multiply
    120,953.60x = 181,387.20 × 42,070.40
  4. Step 4: Simplify right side
    120,953.60x = 7,631,032,058.88
  5. Step 5: Solve for x
    x = 7,631,032,058.88/120,953.60
  6. Step 6: Final answer
    x = 63,090.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.