Home / 162,489-224,232.93-90,868.35

Finding the Fourth Proportional to 162,489, 224,232.93 and 90,868.35

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Solution

The fourth proportional to 162,489, 224,232.93 and 90,868.35 is: 125,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,489 : 224,232.93 = 90,868.35 : x
  2. Step 2: Convert to fraction form
    162,489/224,232.93 = 90,868.35/x
  3. Step 3: Cross multiply
    162,489x = 224,232.93 × 90,868.35
  4. Step 4: Simplify right side
    162,489x = 20,375,676,364.77
  5. Step 5: Solve for x
    x = 20,375,676,364.77/162,489
  6. Step 6: Final answer
    x = 125,397.27

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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.