Home / 145,027.90-217,547.72-69,087.38

Finding the Fourth Proportional to 145,027.90, 217,547.72 and 69,087.38

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Solution

The fourth proportional to 145,027.90, 217,547.72 and 69,087.38 is: 103,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,027.90 : 217,547.72 = 69,087.38 : x
  2. Step 2: Convert to fraction form
    145,027.90/217,547.72 = 69,087.38/x
  3. Step 3: Cross multiply
    145,027.90x = 217,547.72 × 69,087.38
  4. Step 4: Simplify right side
    145,027.90x = 15,029,802,438.00
  5. Step 5: Solve for x
    x = 15,029,802,438.00/145,027.90
  6. Step 6: Final answer
    x = 103,633.87

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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.