Home / 115,622.42-159,555.56-64,635.24

Finding the Fourth Proportional to 115,622.42, 159,555.56 and 64,635.24

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Solution

The fourth proportional to 115,622.42, 159,555.56 and 64,635.24 is: 89,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,622.42 : 159,555.56 = 64,635.24 : x
  2. Step 2: Convert to fraction form
    115,622.42/159,555.56 = 64,635.24/x
  3. Step 3: Cross multiply
    115,622.42x = 159,555.56 × 64,635.24
  4. Step 4: Simplify right side
    115,622.42x = 10,312,911,913.93
  5. Step 5: Solve for x
    x = 10,312,911,913.93/115,622.42
  6. Step 6: Final answer
    x = 89,194.74

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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.