Home / 160,280.93-221,375.91-128,126.91

Finding the Fourth Proportional to 160,280.93, 221,375.91 and 128,126.91

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Solution

The fourth proportional to 160,280.93, 221,375.91 and 128,126.91 is: 176,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,280.93 : 221,375.91 = 128,126.91 : x
  2. Step 2: Convert to fraction form
    160,280.93/221,375.91 = 128,126.91/x
  3. Step 3: Cross multiply
    160,280.93x = 221,375.91 × 128,126.91
  4. Step 4: Simplify right side
    160,280.93x = 28,364,211,296.74
  5. Step 5: Solve for x
    x = 28,364,211,296.74/160,280.93
  6. Step 6: Final answer
    x = 176,965.60

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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.