Home / 102,387.93-141,295.02-57,065.40

Finding the Fourth Proportional to 102,387.93, 141,295.02 and 57,065.40

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Solution

The fourth proportional to 102,387.93, 141,295.02 and 57,065.40 is: 78,750.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,387.93 : 141,295.02 = 57,065.40 : x
  2. Step 2: Convert to fraction form
    102,387.93/141,295.02 = 57,065.40/x
  3. Step 3: Cross multiply
    102,387.93x = 141,295.02 × 57,065.40
  4. Step 4: Simplify right side
    102,387.93x = 8,063,056,834.31
  5. Step 5: Solve for x
    x = 8,063,056,834.31/102,387.93
  6. Step 6: Final answer
    x = 78,750.07

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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.