Home / 153,745.02-212,158.98-89,209.26

Finding the Fourth Proportional to 153,745.02, 212,158.98 and 89,209.26

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Solution

The fourth proportional to 153,745.02, 212,158.98 and 89,209.26 is: 123,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,745.02 : 212,158.98 = 89,209.26 : x
  2. Step 2: Convert to fraction form
    153,745.02/212,158.98 = 89,209.26/x
  3. Step 3: Cross multiply
    153,745.02x = 212,158.98 × 89,209.26
  4. Step 4: Simplify right side
    153,745.02x = 18,926,545,608.15
  5. Step 5: Solve for x
    x = 18,926,545,608.15/153,745.02
  6. Step 6: Final answer
    x = 123,103.47

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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.