Home / 120,946.40-181,473.60-42,117.20

Finding the Fourth Proportional to 120,946.40, 181,473.60 and 42,117.20

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Solution

The fourth proportional to 120,946.40, 181,473.60 and 42,117.20 is: 63,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,946.40 : 181,473.60 = 42,117.20 : x
  2. Step 2: Convert to fraction form
    120,946.40/181,473.60 = 42,117.20/x
  3. Step 3: Cross multiply
    120,946.40x = 181,473.60 × 42,117.20
  4. Step 4: Simplify right side
    120,946.40x = 7,643,159,905.92
  5. Step 5: Solve for x
    x = 7,643,159,905.92/120,946.40
  6. Step 6: Final answer
    x = 63,194.60

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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.