Home / 97,308.20-145,847.10-72,655.40

Finding the Fourth Proportional to 97,308.20, 145,847.10 and 72,655.40

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Solution

The fourth proportional to 97,308.20, 145,847.10 and 72,655.40 is: 108,897.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,308.20 : 145,847.10 = 72,655.40 : x
  2. Step 2: Convert to fraction form
    97,308.20/145,847.10 = 72,655.40/x
  3. Step 3: Cross multiply
    97,308.20x = 145,847.10 × 72,655.40
  4. Step 4: Simplify right side
    97,308.20x = 10,596,579,389.34
  5. Step 5: Solve for x
    x = 10,596,579,389.34/97,308.20
  6. Step 6: Final answer
    x = 108,897.09

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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.