Home / 112,960.87-156,048.20-90,270.13

Finding the Fourth Proportional to 112,960.87, 156,048.20 and 90,270.13

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Solution

The fourth proportional to 112,960.87, 156,048.20 and 90,270.13 is: 124,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,960.87 : 156,048.20 = 90,270.13 : x
  2. Step 2: Convert to fraction form
    112,960.87/156,048.20 = 90,270.13/x
  3. Step 3: Cross multiply
    112,960.87x = 156,048.20 × 90,270.13
  4. Step 4: Simplify right side
    112,960.87x = 14,086,490,848.92
  5. Step 5: Solve for x
    x = 14,086,490,848.92/112,960.87
  6. Step 6: Final answer
    x = 124,702.40

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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.