Home / 142,148.14-213,143.77-57,886.70

Finding the Fourth Proportional to 142,148.14, 213,143.77 and 57,886.70

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Solution

The fourth proportional to 142,148.14, 213,143.77 and 57,886.70 is: 86,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,148.14 : 213,143.77 = 57,886.70 : x
  2. Step 2: Convert to fraction form
    142,148.14/213,143.77 = 57,886.70/x
  3. Step 3: Cross multiply
    142,148.14x = 213,143.77 × 57,886.70
  4. Step 4: Simplify right side
    142,148.14x = 12,338,189,470.86
  5. Step 5: Solve for x
    x = 12,338,189,470.86/142,148.14
  6. Step 6: Final answer
    x = 86,798.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.