Home / 145,639.32-218,543.89-61,394.32

Finding the Fourth Proportional to 145,639.32, 218,543.89 and 61,394.32

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Solution

The fourth proportional to 145,639.32, 218,543.89 and 61,394.32 is: 92,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,639.32 : 218,543.89 = 61,394.32 : x
  2. Step 2: Convert to fraction form
    145,639.32/218,543.89 = 61,394.32/x
  3. Step 3: Cross multiply
    145,639.32x = 218,543.89 × 61,394.32
  4. Step 4: Simplify right side
    145,639.32x = 13,417,353,516.70
  5. Step 5: Solve for x
    x = 13,417,353,516.70/145,639.32
  6. Step 6: Final answer
    x = 92,127.27

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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.