Home / 158,868.61-219,242.50-87,250.18

Finding the Fourth Proportional to 158,868.61, 219,242.50 and 87,250.18

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Solution

The fourth proportional to 158,868.61, 219,242.50 and 87,250.18 is: 120,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,868.61 : 219,242.50 = 87,250.18 : x
  2. Step 2: Convert to fraction form
    158,868.61/219,242.50 = 87,250.18/x
  3. Step 3: Cross multiply
    158,868.61x = 219,242.50 × 87,250.18
  4. Step 4: Simplify right side
    158,868.61x = 19,128,947,233.50
  5. Step 5: Solve for x
    x = 19,128,947,233.50/158,868.61
  6. Step 6: Final answer
    x = 120,407.35

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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.