Home / 158,272.88-218,416.62-86,657.52

Finding the Fourth Proportional to 158,272.88, 218,416.62 and 86,657.52

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Solution

The fourth proportional to 158,272.88, 218,416.62 and 86,657.52 is: 119,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,272.88 : 218,416.62 = 86,657.52 : x
  2. Step 2: Convert to fraction form
    158,272.88/218,416.62 = 86,657.52/x
  3. Step 3: Cross multiply
    158,272.88x = 218,416.62 × 86,657.52
  4. Step 4: Simplify right side
    158,272.88x = 18,927,442,615.98
  5. Step 5: Solve for x
    x = 18,927,442,615.98/158,272.88
  6. Step 6: Final answer
    x = 119,587.40

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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.