Home / 145,893.02-201,332.40-78,825.02

Finding the Fourth Proportional to 145,893.02, 201,332.40 and 78,825.02

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Solution

The fourth proportional to 145,893.02, 201,332.40 and 78,825.02 is: 108,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,893.02 : 201,332.40 = 78,825.02 : x
  2. Step 2: Convert to fraction form
    145,893.02/201,332.40 = 78,825.02/x
  3. Step 3: Cross multiply
    145,893.02x = 201,332.40 × 78,825.02
  4. Step 4: Simplify right side
    145,893.02x = 15,870,030,456.65
  5. Step 5: Solve for x
    x = 15,870,030,456.65/145,893.02
  6. Step 6: Final answer
    x = 108,778.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.