Home / 99,344.10-148,688.10-69,819.60

Finding the Fourth Proportional to 99,344.10, 148,688.10 and 69,819.60

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Solution

The fourth proportional to 99,344.10, 148,688.10 and 69,819.60 is: 104,498.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.10 : 148,688.10 = 69,819.60 : x
  2. Step 2: Convert to fraction form
    99,344.10/148,688.10 = 69,819.60/x
  3. Step 3: Cross multiply
    99,344.10x = 148,688.10 × 69,819.60
  4. Step 4: Simplify right side
    99,344.10x = 10,381,343,666.76
  5. Step 5: Solve for x
    x = 10,381,343,666.76/99,344.10
  6. Step 6: Final answer
    x = 104,498.84

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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.