Home / 128,149.02-176,667.75-110,432.70

Finding the Fourth Proportional to 128,149.02, 176,667.75 and 110,432.70

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Solution

The fourth proportional to 128,149.02, 176,667.75 and 110,432.70 is: 152,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,149.02 : 176,667.75 = 110,432.70 : x
  2. Step 2: Convert to fraction form
    128,149.02/176,667.75 = 110,432.70/x
  3. Step 3: Cross multiply
    128,149.02x = 176,667.75 × 110,432.70
  4. Step 4: Simplify right side
    128,149.02x = 19,509,896,635.43
  5. Step 5: Solve for x
    x = 19,509,896,635.43/128,149.02
  6. Step 6: Final answer
    x = 152,243.82

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1.5x scale

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.