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Finding the Fourth Proportional to 145,037.19, 217,555.13 and 45,197.46

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Solution

The fourth proportional to 145,037.19, 217,555.13 and 45,197.46 is: 67,795.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,037.19 : 217,555.13 = 45,197.46 : x
  2. Step 2: Convert to fraction form
    145,037.19/217,555.13 = 45,197.46/x
  3. Step 3: Cross multiply
    145,037.19x = 217,555.13 × 45,197.46
  4. Step 4: Simplify right side
    145,037.19x = 9,832,939,059.98
  5. Step 5: Solve for x
    x = 9,832,939,059.98/145,037.19
  6. Step 6: Final answer
    x = 67,795.98

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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.