Home / 118,411.90-163,406.50-64,695.76

Finding the Fourth Proportional to 118,411.90, 163,406.50 and 64,695.76

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Solution

The fourth proportional to 118,411.90, 163,406.50 and 64,695.76 is: 89,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,411.90 : 163,406.50 = 64,695.76 : x
  2. Step 2: Convert to fraction form
    118,411.90/163,406.50 = 64,695.76/x
  3. Step 3: Cross multiply
    118,411.90x = 163,406.50 × 64,695.76
  4. Step 4: Simplify right side
    118,411.90x = 10,571,707,706.44
  5. Step 5: Solve for x
    x = 10,571,707,706.44/118,411.90
  6. Step 6: Final answer
    x = 89,279.10

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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.