Home / 102,386.93-141,298.77-57,065.22

Finding the Fourth Proportional to 102,386.93, 141,298.77 and 57,065.22

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Solution

The fourth proportional to 102,386.93, 141,298.77 and 57,065.22 is: 78,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,386.93 : 141,298.77 = 57,065.22 : x
  2. Step 2: Convert to fraction form
    102,386.93/141,298.77 = 57,065.22/x
  3. Step 3: Cross multiply
    102,386.93x = 141,298.77 × 57,065.22
  4. Step 4: Simplify right side
    102,386.93x = 8,063,245,609.77
  5. Step 5: Solve for x
    x = 8,063,245,609.77/102,386.93
  6. Step 6: Final answer
    x = 78,752.69

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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.