Home / 123,931.53-171,011.63-70,205.04

Finding the Fourth Proportional to 123,931.53, 171,011.63 and 70,205.04

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Solution

The fourth proportional to 123,931.53, 171,011.63 and 70,205.04 is: 96,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,931.53 : 171,011.63 = 70,205.04 : x
  2. Step 2: Convert to fraction form
    123,931.53/171,011.63 = 70,205.04/x
  3. Step 3: Cross multiply
    123,931.53x = 171,011.63 × 70,205.04
  4. Step 4: Simplify right side
    123,931.53x = 12,005,878,324.62
  5. Step 5: Solve for x
    x = 12,005,878,324.62/123,931.53
  6. Step 6: Final answer
    x = 96,875.09

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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.