Home / 112,657.19-155,474.45-64,913.63

Finding the Fourth Proportional to 112,657.19, 155,474.45 and 64,913.63

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Solution

The fourth proportional to 112,657.19, 155,474.45 and 64,913.63 is: 89,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657.19 : 155,474.45 = 64,913.63 : x
  2. Step 2: Convert to fraction form
    112,657.19/155,474.45 = 64,913.63/x
  3. Step 3: Cross multiply
    112,657.19x = 155,474.45 × 64,913.63
  4. Step 4: Simplify right side
    112,657.19x = 10,092,410,921.75
  5. Step 5: Solve for x
    x = 10,092,410,921.75/112,657.19
  6. Step 6: Final answer
    x = 89,585.15

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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.