Home / 97,259.60-145,125.94-87,319.64

Finding the Fourth Proportional to 97,259.60, 145,125.94 and 87,319.64

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Solution

The fourth proportional to 97,259.60, 145,125.94 and 87,319.64 is: 130,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,259.60 : 145,125.94 = 87,319.64 : x
  2. Step 2: Convert to fraction form
    97,259.60/145,125.94 = 87,319.64/x
  3. Step 3: Cross multiply
    97,259.60x = 145,125.94 × 87,319.64
  4. Step 4: Simplify right side
    97,259.60x = 12,672,344,835.46
  5. Step 5: Solve for x
    x = 12,672,344,835.46/97,259.60
  6. Step 6: Final answer
    x = 130,294.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.