Home / 124,783.20-172,151.76-76,953.60

Finding the Fourth Proportional to 124,783.20, 172,151.76 and 76,953.60

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Solution

The fourth proportional to 124,783.20, 172,151.76 and 76,953.60 is: 106,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,783.20 : 172,151.76 = 76,953.60 : x
  2. Step 2: Convert to fraction form
    124,783.20/172,151.76 = 76,953.60/x
  3. Step 3: Cross multiply
    124,783.20x = 172,151.76 × 76,953.60
  4. Step 4: Simplify right side
    124,783.20x = 13,247,697,678.34
  5. Step 5: Solve for x
    x = 13,247,697,678.34/124,783.20
  6. Step 6: Final answer
    x = 106,165.72

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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.