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Finding the Fourth Proportional to 108,038.80, 162,058.20 and 45,701.20

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Solution

The fourth proportional to 108,038.80, 162,058.20 and 45,701.20 is: 68,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,038.80 : 162,058.20 = 45,701.20 : x
  2. Step 2: Convert to fraction form
    108,038.80/162,058.20 = 45,701.20/x
  3. Step 3: Cross multiply
    108,038.80x = 162,058.20 × 45,701.20
  4. Step 4: Simplify right side
    108,038.80x = 7,406,254,209.84
  5. Step 5: Solve for x
    x = 7,406,254,209.84/108,038.80
  6. Step 6: Final answer
    x = 68,551.80

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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.