Home / 105,590.16-158,385.24-84,772.08

Finding the Fourth Proportional to 105,590.16, 158,385.24 and 84,772.08

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Solution

The fourth proportional to 105,590.16, 158,385.24 and 84,772.08 is: 127,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,590.16 : 158,385.24 = 84,772.08 : x
  2. Step 2: Convert to fraction form
    105,590.16/158,385.24 = 84,772.08/x
  3. Step 3: Cross multiply
    105,590.16x = 158,385.24 × 84,772.08
  4. Step 4: Simplify right side
    105,590.16x = 13,426,646,236.10
  5. Step 5: Solve for x
    x = 13,426,646,236.10/105,590.16
  6. Step 6: Final answer
    x = 127,158.12

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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.