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Finding the Fourth Proportional to 121,459.95, 167,487.54 and 104,521.62

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Solution

The fourth proportional to 121,459.95, 167,487.54 and 104,521.62 is: 144,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,459.95 : 167,487.54 = 104,521.62 : x
  2. Step 2: Convert to fraction form
    121,459.95/167,487.54 = 104,521.62/x
  3. Step 3: Cross multiply
    121,459.95x = 167,487.54 × 104,521.62
  4. Step 4: Simplify right side
    121,459.95x = 17,506,069,010.61
  5. Step 5: Solve for x
    x = 17,506,069,010.61/121,459.95
  6. Step 6: Final answer
    x = 144,130.38

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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.