Home / 97,835.40-147,066.30-90,901.80

Finding the Fourth Proportional to 97,835.40, 147,066.30 and 90,901.80

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Solution

The fourth proportional to 97,835.40, 147,066.30 and 90,901.80 is: 136,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,835.40 : 147,066.30 = 90,901.80 : x
  2. Step 2: Convert to fraction form
    97,835.40/147,066.30 = 90,901.80/x
  3. Step 3: Cross multiply
    97,835.40x = 147,066.30 × 90,901.80
  4. Step 4: Simplify right side
    97,835.40x = 13,368,591,389.34
  5. Step 5: Solve for x
    x = 13,368,591,389.34/97,835.40
  6. Step 6: Final answer
    x = 136,643.70

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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.