Home / 98,880.66-136,457.19-54,168.66

Finding the Fourth Proportional to 98,880.66, 136,457.19 and 54,168.66

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Solution

The fourth proportional to 98,880.66, 136,457.19 and 54,168.66 is: 74,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,880.66 : 136,457.19 = 54,168.66 : x
  2. Step 2: Convert to fraction form
    98,880.66/136,457.19 = 54,168.66/x
  3. Step 3: Cross multiply
    98,880.66x = 136,457.19 × 54,168.66
  4. Step 4: Simplify right side
    98,880.66x = 7,391,703,129.67
  5. Step 5: Solve for x
    x = 7,391,703,129.67/98,880.66
  6. Step 6: Final answer
    x = 74,753.78

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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.