Home / 121,518.40-182,277.60-69,030.40

Finding the Fourth Proportional to 121,518.40, 182,277.60 and 69,030.40

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Solution

The fourth proportional to 121,518.40, 182,277.60 and 69,030.40 is: 103,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,518.40 : 182,277.60 = 69,030.40 : x
  2. Step 2: Convert to fraction form
    121,518.40/182,277.60 = 69,030.40/x
  3. Step 3: Cross multiply
    121,518.40x = 182,277.60 × 69,030.40
  4. Step 4: Simplify right side
    121,518.40x = 12,582,695,639.04
  5. Step 5: Solve for x
    x = 12,582,695,639.04/121,518.40
  6. Step 6: Final answer
    x = 103,545.60

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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.