Home / 158,116.01-218,211.93-90,134.60

Finding the Fourth Proportional to 158,116.01, 218,211.93 and 90,134.60

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Solution

The fourth proportional to 158,116.01, 218,211.93 and 90,134.60 is: 124,392.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,116.01 : 218,211.93 = 90,134.60 : x
  2. Step 2: Convert to fraction form
    158,116.01/218,211.93 = 90,134.60/x
  3. Step 3: Cross multiply
    158,116.01x = 218,211.93 × 90,134.60
  4. Step 4: Simplify right side
    158,116.01x = 19,668,445,025.78
  5. Step 5: Solve for x
    x = 19,668,445,025.78/158,116.01
  6. Step 6: Final answer
    x = 124,392.50

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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.