Home / 162,421.29-224,142.98-90,805.23

Finding the Fourth Proportional to 162,421.29, 224,142.98 and 90,805.23

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Solution

The fourth proportional to 162,421.29, 224,142.98 and 90,805.23 is: 125,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,421.29 : 224,142.98 = 90,805.23 : x
  2. Step 2: Convert to fraction form
    162,421.29/224,142.98 = 90,805.23/x
  3. Step 3: Cross multiply
    162,421.29x = 224,142.98 × 90,805.23
  4. Step 4: Simplify right side
    162,421.29x = 20,353,354,397.76
  5. Step 5: Solve for x
    x = 20,353,354,397.76/162,421.29
  6. Step 6: Final answer
    x = 125,312.11

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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.