Home / 102,637.55-141,640.01-57,315.38

Finding the Fourth Proportional to 102,637.55, 141,640.01 and 57,315.38

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Solution

The fourth proportional to 102,637.55, 141,640.01 and 57,315.38 is: 79,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,637.55 : 141,640.01 = 57,315.38 : x
  2. Step 2: Convert to fraction form
    102,637.55/141,640.01 = 57,315.38/x
  3. Step 3: Cross multiply
    102,637.55x = 141,640.01 × 57,315.38
  4. Step 4: Simplify right side
    102,637.55x = 8,118,150,001.58
  5. Step 5: Solve for x
    x = 8,118,150,001.58/102,637.55
  6. Step 6: Final answer
    x = 79,095.33

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1.5x scale

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.