Home / 124,125.50-171,297.02-70,412.78

Finding the Fourth Proportional to 124,125.50, 171,297.02 and 70,412.78

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Solution

The fourth proportional to 124,125.50, 171,297.02 and 70,412.78 is: 97,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,125.50 : 171,297.02 = 70,412.78 : x
  2. Step 2: Convert to fraction form
    124,125.50/171,297.02 = 70,412.78/x
  3. Step 3: Cross multiply
    124,125.50x = 171,297.02 × 70,412.78
  4. Step 4: Simplify right side
    124,125.50x = 12,061,499,383.92
  5. Step 5: Solve for x
    x = 12,061,499,383.92/124,125.50
  6. Step 6: Final answer
    x = 97,171.81

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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.