Home / 209,722.15-289,430.18-124,827.67

Finding the Fourth Proportional to 209,722.15, 289,430.18 and 124,827.67

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Solution

The fourth proportional to 209,722.15, 289,430.18 and 124,827.67 is: 172,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,722.15 : 289,430.18 = 124,827.67 : x
  2. Step 2: Convert to fraction form
    209,722.15/289,430.18 = 124,827.67/x
  3. Step 3: Cross multiply
    209,722.15x = 289,430.18 × 124,827.67
  4. Step 4: Simplify right side
    209,722.15x = 36,128,894,997.08
  5. Step 5: Solve for x
    x = 36,128,894,997.08/209,722.15
  6. Step 6: Final answer
    x = 172,270.29

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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.