Home / 109,872.24-151,646.04-65,186.16

Finding the Fourth Proportional to 109,872.24, 151,646.04 and 65,186.16

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Solution

The fourth proportional to 109,872.24, 151,646.04 and 65,186.16 is: 89,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,872.24 : 151,646.04 = 65,186.16 : x
  2. Step 2: Convert to fraction form
    109,872.24/151,646.04 = 65,186.16/x
  3. Step 3: Cross multiply
    109,872.24x = 151,646.04 × 65,186.16
  4. Step 4: Simplify right side
    109,872.24x = 9,885,223,026.81
  5. Step 5: Solve for x
    x = 9,885,223,026.81/109,872.24
  6. Step 6: Final answer
    x = 89,970.16

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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.