Home / 147,332.76-220,809.58-128,279.43

Finding the Fourth Proportional to 147,332.76, 220,809.58 and 128,279.43

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Solution

The fourth proportional to 147,332.76, 220,809.58 and 128,279.43 is: 192,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,332.76 : 220,809.58 = 128,279.43 : x
  2. Step 2: Convert to fraction form
    147,332.76/220,809.58 = 128,279.43/x
  3. Step 3: Cross multiply
    147,332.76x = 220,809.58 × 128,279.43
  4. Step 4: Simplify right side
    147,332.76x = 28,325,326,740.24
  5. Step 5: Solve for x
    x = 28,325,326,740.24/147,332.76
  6. Step 6: Final answer
    x = 192,254.10

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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.