Home / 108,031.20-162,142.80-63,602.40

Finding the Fourth Proportional to 108,031.20, 162,142.80 and 63,602.40

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Solution

The fourth proportional to 108,031.20, 162,142.80 and 63,602.40 is: 95,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,031.20 : 162,142.80 = 63,602.40 : x
  2. Step 2: Convert to fraction form
    108,031.20/162,142.80 = 63,602.40/x
  3. Step 3: Cross multiply
    108,031.20x = 162,142.80 × 63,602.40
  4. Step 4: Simplify right side
    108,031.20x = 10,312,671,222.72
  5. Step 5: Solve for x
    x = 10,312,671,222.72/108,031.20
  6. Step 6: Final answer
    x = 95,460.12

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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.