Home / 102,437.48-141,353.39-57,111.20

Finding the Fourth Proportional to 102,437.48, 141,353.39 and 57,111.20

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Solution

The fourth proportional to 102,437.48, 141,353.39 and 57,111.20 is: 78,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,437.48 : 141,353.39 = 57,111.20 : x
  2. Step 2: Convert to fraction form
    102,437.48/141,353.39 = 57,111.20/x
  3. Step 3: Cross multiply
    102,437.48x = 141,353.39 × 57,111.20
  4. Step 4: Simplify right side
    102,437.48x = 8,072,860,734.65
  5. Step 5: Solve for x
    x = 8,072,860,734.65/102,437.48
  6. Step 6: Final answer
    x = 78,807.69

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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.