Home / 158,124.52-218,211.06-86,503.24

Finding the Fourth Proportional to 158,124.52, 218,211.06 and 86,503.24

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Solution

The fourth proportional to 158,124.52, 218,211.06 and 86,503.24 is: 119,374.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,124.52 : 218,211.06 = 86,503.24 : x
  2. Step 2: Convert to fraction form
    158,124.52/218,211.06 = 86,503.24/x
  3. Step 3: Cross multiply
    158,124.52x = 218,211.06 × 86,503.24
  4. Step 4: Simplify right side
    158,124.52x = 18,875,963,693.83
  5. Step 5: Solve for x
    x = 18,875,963,693.83/158,124.52
  6. Step 6: Final answer
    x = 119,374.05

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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.