Home / 156,870.14-216,480.20-88,900.07

Finding the Fourth Proportional to 156,870.14, 216,480.20 and 88,900.07

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Solution

The fourth proportional to 156,870.14, 216,480.20 and 88,900.07 is: 122,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,870.14 : 216,480.20 = 88,900.07 : x
  2. Step 2: Convert to fraction form
    156,870.14/216,480.20 = 88,900.07/x
  3. Step 3: Cross multiply
    156,870.14x = 216,480.20 × 88,900.07
  4. Step 4: Simplify right side
    156,870.14x = 19,245,104,489.11
  5. Step 5: Solve for x
    x = 19,245,104,489.11/156,870.14
  6. Step 6: Final answer
    x = 122,681.76

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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.