Home / 112,520.35-155,345.45-70,136.29

Finding the Fourth Proportional to 112,520.35, 155,345.45 and 70,136.29

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Solution

The fourth proportional to 112,520.35, 155,345.45 and 70,136.29 is: 96,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,520.35 : 155,345.45 = 70,136.29 : x
  2. Step 2: Convert to fraction form
    112,520.35/155,345.45 = 70,136.29/x
  3. Step 3: Cross multiply
    112,520.35x = 155,345.45 × 70,136.29
  4. Step 4: Simplify right side
    112,520.35x = 10,895,353,180.70
  5. Step 5: Solve for x
    x = 10,895,353,180.70/112,520.35
  6. Step 6: Final answer
    x = 96,830.07

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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.