Home / 115,349.64-159,109.02-101,702.76

Finding the Fourth Proportional to 115,349.64, 159,109.02 and 101,702.76

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Solution

The fourth proportional to 115,349.64, 159,109.02 and 101,702.76 is: 140,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,349.64 : 159,109.02 = 101,702.76 : x
  2. Step 2: Convert to fraction form
    115,349.64/159,109.02 = 101,702.76/x
  3. Step 3: Cross multiply
    115,349.64x = 159,109.02 × 101,702.76
  4. Step 4: Simplify right side
    115,349.64x = 16,181,826,474.90
  5. Step 5: Solve for x
    x = 16,181,826,474.90/115,349.64
  6. Step 6: Final answer
    x = 140,285.02

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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.