Home / 101,430.42-151,402.49-89,459.88

Finding the Fourth Proportional to 101,430.42, 151,402.49 and 89,459.88

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Solution

The fourth proportional to 101,430.42, 151,402.49 and 89,459.88 is: 133,534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,430.42 : 151,402.49 = 89,459.88 : x
  2. Step 2: Convert to fraction form
    101,430.42/151,402.49 = 89,459.88/x
  3. Step 3: Cross multiply
    101,430.42x = 151,402.49 × 89,459.88
  4. Step 4: Simplify right side
    101,430.42x = 13,544,448,587.10
  5. Step 5: Solve for x
    x = 13,544,448,587.10/101,430.42
  6. Step 6: Final answer
    x = 133,534.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.