Home / 157,200.24-216,964.52-100,609.68

Finding the Fourth Proportional to 157,200.24, 216,964.52 and 100,609.68

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Solution

The fourth proportional to 157,200.24, 216,964.52 and 100,609.68 is: 138,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,200.24 : 216,964.52 = 100,609.68 : x
  2. Step 2: Convert to fraction form
    157,200.24/216,964.52 = 100,609.68/x
  3. Step 3: Cross multiply
    157,200.24x = 216,964.52 × 100,609.68
  4. Step 4: Simplify right side
    157,200.24x = 21,828,730,928.55
  5. Step 5: Solve for x
    x = 21,828,730,928.55/157,200.24
  6. Step 6: Final answer
    x = 138,859.40

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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.