Home / 210,749.12-316,123.66-77,580.24

Finding the Fourth Proportional to 210,749.12, 316,123.66 and 77,580.24

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Solution

The fourth proportional to 210,749.12, 316,123.66 and 77,580.24 is: 116,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,749.12 : 316,123.66 = 77,580.24 : x
  2. Step 2: Convert to fraction form
    210,749.12/316,123.66 = 77,580.24/x
  3. Step 3: Cross multiply
    210,749.12x = 316,123.66 × 77,580.24
  4. Step 4: Simplify right side
    210,749.12x = 24,524,949,412.48
  5. Step 5: Solve for x
    x = 24,524,949,412.48/210,749.12
  6. Step 6: Final answer
    x = 116,370.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.