Home / 112,348.16-154,776.75-78,294.74

Finding the Fourth Proportional to 112,348.16, 154,776.75 and 78,294.74

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Solution

The fourth proportional to 112,348.16, 154,776.75 and 78,294.74 is: 107,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,348.16 : 154,776.75 = 78,294.74 : x
  2. Step 2: Convert to fraction form
    112,348.16/154,776.75 = 78,294.74/x
  3. Step 3: Cross multiply
    112,348.16x = 154,776.75 × 78,294.74
  4. Step 4: Simplify right side
    112,348.16x = 12,118,205,399.30
  5. Step 5: Solve for x
    x = 12,118,205,399.30/112,348.16
  6. Step 6: Final answer
    x = 107,862.96

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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.