Home / 124,211.20-186,316.80-71,577.40

Finding the Fourth Proportional to 124,211.20, 186,316.80 and 71,577.40

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Solution

The fourth proportional to 124,211.20, 186,316.80 and 71,577.40 is: 107,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,211.20 : 186,316.80 = 71,577.40 : x
  2. Step 2: Convert to fraction form
    124,211.20/186,316.80 = 71,577.40/x
  3. Step 3: Cross multiply
    124,211.20x = 186,316.80 × 71,577.40
  4. Step 4: Simplify right side
    124,211.20x = 13,336,072,120.32
  5. Step 5: Solve for x
    x = 13,336,072,120.32/124,211.20
  6. Step 6: Final answer
    x = 107,366.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.