Home / 145,539.06-217,903.69-74,307.87

Finding the Fourth Proportional to 145,539.06, 217,903.69 and 74,307.87

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Solution

The fourth proportional to 145,539.06, 217,903.69 and 74,307.87 is: 111,255.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539.06 : 217,903.69 = 74,307.87 : x
  2. Step 2: Convert to fraction form
    145,539.06/217,903.69 = 74,307.87/x
  3. Step 3: Cross multiply
    145,539.06x = 217,903.69 × 74,307.87
  4. Step 4: Simplify right side
    145,539.06x = 16,191,959,069.04
  5. Step 5: Solve for x
    x = 16,191,959,069.04/145,539.06
  6. Step 6: Final answer
    x = 111,255.08

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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.