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Finding the Fourth Proportional to 145,903.52, 218,767.80 and 70,875.92

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Solution

The fourth proportional to 145,903.52, 218,767.80 and 70,875.92 is: 106,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,903.52 : 218,767.80 = 70,875.92 : x
  2. Step 2: Convert to fraction form
    145,903.52/218,767.80 = 70,875.92/x
  3. Step 3: Cross multiply
    145,903.52x = 218,767.80 × 70,875.92
  4. Step 4: Simplify right side
    145,903.52x = 15,505,369,091.38
  5. Step 5: Solve for x
    x = 15,505,369,091.38/145,903.52
  6. Step 6: Final answer
    x = 106,271.38

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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.