Home / 121,503.20-182,254.80-111,880.40

Finding the Fourth Proportional to 121,503.20, 182,254.80 and 111,880.40

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Solution

The fourth proportional to 121,503.20, 182,254.80 and 111,880.40 is: 167,820.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,503.20 : 182,254.80 = 111,880.40 : x
  2. Step 2: Convert to fraction form
    121,503.20/182,254.80 = 111,880.40/x
  3. Step 3: Cross multiply
    121,503.20x = 182,254.80 × 111,880.40
  4. Step 4: Simplify right side
    121,503.20x = 20,390,739,925.92
  5. Step 5: Solve for x
    x = 20,390,739,925.92/121,503.20
  6. Step 6: Final answer
    x = 167,820.60

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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.