Home / 145,500.30-216,965.49-127,803.42

Finding the Fourth Proportional to 145,500.30, 216,965.49 and 127,803.42

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Solution

The fourth proportional to 145,500.30, 216,965.49 and 127,803.42 is: 190,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,500.30 : 216,965.49 = 127,803.42 : x
  2. Step 2: Convert to fraction form
    145,500.30/216,965.49 = 127,803.42/x
  3. Step 3: Cross multiply
    145,500.30x = 216,965.49 × 127,803.42
  4. Step 4: Simplify right side
    145,500.30x = 27,728,931,164.71
  5. Step 5: Solve for x
    x = 27,728,931,164.71/145,500.30
  6. Step 6: Final answer
    x = 190,576.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.