Home / 102,693.28-141,702.69-57,365.65

Finding the Fourth Proportional to 102,693.28, 141,702.69 and 57,365.65

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Solution

The fourth proportional to 102,693.28, 141,702.69 and 57,365.65 is: 79,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,693.28 : 141,702.69 = 57,365.65 : x
  2. Step 2: Convert to fraction form
    102,693.28/141,702.69 = 57,365.65/x
  3. Step 3: Cross multiply
    102,693.28x = 141,702.69 × 57,365.65
  4. Step 4: Simplify right side
    102,693.28x = 8,128,866,918.60
  5. Step 5: Solve for x
    x = 8,128,866,918.60/102,693.28
  6. Step 6: Final answer
    x = 79,156.76

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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.