Home / 145,966.40-218,463.60-105,871.40

Finding the Fourth Proportional to 145,966.40, 218,463.60 and 105,871.40

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Solution

The fourth proportional to 145,966.40, 218,463.60 and 105,871.40 is: 158,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,966.40 : 218,463.60 = 105,871.40 : x
  2. Step 2: Convert to fraction form
    145,966.40/218,463.60 = 105,871.40/x
  3. Step 3: Cross multiply
    145,966.40x = 218,463.60 × 105,871.40
  4. Step 4: Simplify right side
    145,966.40x = 23,129,047,181.04
  5. Step 5: Solve for x
    x = 23,129,047,181.04/145,966.40
  6. Step 6: Final answer
    x = 158,454.60

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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.