Home / 124,218.40-186,327.60-71,730.40

Finding the Fourth Proportional to 124,218.40, 186,327.60 and 71,730.40

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Solution

The fourth proportional to 124,218.40, 186,327.60 and 71,730.40 is: 107,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,218.40 : 186,327.60 = 71,730.40 : x
  2. Step 2: Convert to fraction form
    124,218.40/186,327.60 = 71,730.40/x
  3. Step 3: Cross multiply
    124,218.40x = 186,327.60 × 71,730.40
  4. Step 4: Simplify right side
    124,218.40x = 13,365,353,279.04
  5. Step 5: Solve for x
    x = 13,365,353,279.04/124,218.40
  6. Step 6: Final answer
    x = 107,595.60

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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.