Home / 158,987.10-219,291.12-134,947.92

Finding the Fourth Proportional to 158,987.10, 219,291.12 and 134,947.92

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Solution

The fourth proportional to 158,987.10, 219,291.12 and 134,947.92 is: 186,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,987.10 : 219,291.12 = 134,947.92 : x
  2. Step 2: Convert to fraction form
    158,987.10/219,291.12 = 134,947.92/x
  3. Step 3: Cross multiply
    158,987.10x = 219,291.12 × 134,947.92
  4. Step 4: Simplify right side
    158,987.10x = 29,592,880,518.47
  5. Step 5: Solve for x
    x = 29,592,880,518.47/158,987.10
  6. Step 6: Final answer
    x = 186,133.85

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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.