Home / 108,421.47-149,622.39-60,679.26

Finding the Fourth Proportional to 108,421.47, 149,622.39 and 60,679.26

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Solution

The fourth proportional to 108,421.47, 149,622.39 and 60,679.26 is: 83,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,421.47 : 149,622.39 = 60,679.26 : x
  2. Step 2: Convert to fraction form
    108,421.47/149,622.39 = 60,679.26/x
  3. Step 3: Cross multiply
    108,421.47x = 149,622.39 × 60,679.26
  4. Step 4: Simplify right side
    108,421.47x = 9,078,975,904.63
  5. Step 5: Solve for x
    x = 9,078,975,904.63/108,421.47
  6. Step 6: Final answer
    x = 83,737.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.