Home / 121,110.04-181,439.07-87,748.57

Finding the Fourth Proportional to 121,110.04, 181,439.07 and 87,748.57

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Solution

The fourth proportional to 121,110.04, 181,439.07 and 87,748.57 is: 131,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,110.04 : 181,439.07 = 87,748.57 : x
  2. Step 2: Convert to fraction form
    121,110.04/181,439.07 = 87,748.57/x
  3. Step 3: Cross multiply
    121,110.04x = 181,439.07 × 87,748.57
  4. Step 4: Simplify right side
    121,110.04x = 15,921,018,934.63
  5. Step 5: Solve for x
    x = 15,921,018,934.63/121,110.04
  6. Step 6: Final answer
    x = 131,459.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.