Home / 102,512.30-153,811.65-55,798.70

Finding the Fourth Proportional to 102,512.30, 153,811.65 and 55,798.70

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Solution

The fourth proportional to 102,512.30, 153,811.65 and 55,798.70 is: 83,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,512.30 : 153,811.65 = 55,798.70 : x
  2. Step 2: Convert to fraction form
    102,512.30/153,811.65 = 55,798.70/x
  3. Step 3: Cross multiply
    102,512.30x = 153,811.65 × 55,798.70
  4. Step 4: Simplify right side
    102,512.30x = 8,582,490,114.86
  5. Step 5: Solve for x
    x = 8,582,490,114.86/102,512.30
  6. Step 6: Final answer
    x = 83,721.56

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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.