Home / 99,158.12-136,837.45-53,835.21

Finding the Fourth Proportional to 99,158.12, 136,837.45 and 53,835.21

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Solution

The fourth proportional to 99,158.12, 136,837.45 and 53,835.21 is: 74,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,158.12 : 136,837.45 = 53,835.21 : x
  2. Step 2: Convert to fraction form
    99,158.12/136,837.45 = 53,835.21/x
  3. Step 3: Cross multiply
    99,158.12x = 136,837.45 × 53,835.21
  4. Step 4: Simplify right side
    99,158.12x = 7,366,672,856.61
  5. Step 5: Solve for x
    x = 7,366,672,856.61/99,158.12
  6. Step 6: Final answer
    x = 74,292.18

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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.