Home / 102,032.10-153,121.05-42,910.20

Finding the Fourth Proportional to 102,032.10, 153,121.05 and 42,910.20

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Solution

The fourth proportional to 102,032.10, 153,121.05 and 42,910.20 is: 64,395.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,032.10 : 153,121.05 = 42,910.20 : x
  2. Step 2: Convert to fraction form
    102,032.10/153,121.05 = 42,910.20/x
  3. Step 3: Cross multiply
    102,032.10x = 153,121.05 × 42,910.20
  4. Step 4: Simplify right side
    102,032.10x = 6,570,454,879.71
  5. Step 5: Solve for x
    x = 6,570,454,879.71/102,032.10
  6. Step 6: Final answer
    x = 64,395.96

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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.