Home / 231,897.60-347,643.90-89,839.80

Finding the Fourth Proportional to 231,897.60, 347,643.90 and 89,839.80

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Solution

The fourth proportional to 231,897.60, 347,643.90 and 89,839.80 is: 134,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,897.60 : 347,643.90 = 89,839.80 : x
  2. Step 2: Convert to fraction form
    231,897.60/347,643.90 = 89,839.80/x
  3. Step 3: Cross multiply
    231,897.60x = 347,643.90 × 89,839.80
  4. Step 4: Simplify right side
    231,897.60x = 31,232,258,447.22
  5. Step 5: Solve for x
    x = 31,232,258,447.22/231,897.60
  6. Step 6: Final answer
    x = 134,681.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.