Home / 161,031.60-241,547.40-90,172.80

Finding the Fourth Proportional to 161,031.60, 241,547.40 and 90,172.80

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Solution

The fourth proportional to 161,031.60, 241,547.40 and 90,172.80 is: 135,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,031.60 : 241,547.40 = 90,172.80 : x
  2. Step 2: Convert to fraction form
    161,031.60/241,547.40 = 90,172.80/x
  3. Step 3: Cross multiply
    161,031.60x = 241,547.40 × 90,172.80
  4. Step 4: Simplify right side
    161,031.60x = 21,781,005,390.72
  5. Step 5: Solve for x
    x = 21,781,005,390.72/161,031.60
  6. Step 6: Final answer
    x = 135,259.20

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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.