Home / 205,036.80-307,497.60-64,838.40

Finding the Fourth Proportional to 205,036.80, 307,497.60 and 64,838.40

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Solution

The fourth proportional to 205,036.80, 307,497.60 and 64,838.40 is: 97,239.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,036.80 : 307,497.60 = 64,838.40 : x
  2. Step 2: Convert to fraction form
    205,036.80/307,497.60 = 64,838.40/x
  3. Step 3: Cross multiply
    205,036.80x = 307,497.60 × 64,838.40
  4. Step 4: Simplify right side
    205,036.80x = 19,937,652,387.84
  5. Step 5: Solve for x
    x = 19,937,652,387.84/205,036.80
  6. Step 6: Final answer
    x = 97,239.39

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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.