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Finding the Fourth Proportional to 120,203.60, 179,959.80 and 73,547.60

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Solution

The fourth proportional to 120,203.60, 179,959.80 and 73,547.60 is: 110,109.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,203.60 : 179,959.80 = 73,547.60 : x
  2. Step 2: Convert to fraction form
    120,203.60/179,959.80 = 73,547.60/x
  3. Step 3: Cross multiply
    120,203.60x = 179,959.80 × 73,547.60
  4. Step 4: Simplify right side
    120,203.60x = 13,235,611,386.48
  5. Step 5: Solve for x
    x = 13,235,611,386.48/120,203.60
  6. Step 6: Final answer
    x = 110,109.94

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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.