Home / 108,437.54-149,649.53-68,136.39

Finding the Fourth Proportional to 108,437.54, 149,649.53 and 68,136.39

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Solution

The fourth proportional to 108,437.54, 149,649.53 and 68,136.39 is: 94,031.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,437.54 : 149,649.53 = 68,136.39 : x
  2. Step 2: Convert to fraction form
    108,437.54/149,649.53 = 68,136.39/x
  3. Step 3: Cross multiply
    108,437.54x = 149,649.53 × 68,136.39
  4. Step 4: Simplify right side
    108,437.54x = 10,196,578,398.71
  5. Step 5: Solve for x
    x = 10,196,578,398.71/108,437.54
  6. Step 6: Final answer
    x = 94,031.82

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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.