Home / 187,077.40-280,421.70-102,707.80

Finding the Fourth Proportional to 187,077.40, 280,421.70 and 102,707.80

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Solution

The fourth proportional to 187,077.40, 280,421.70 and 102,707.80 is: 153,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,077.40 : 280,421.70 = 102,707.80 : x
  2. Step 2: Convert to fraction form
    187,077.40/280,421.70 = 102,707.80/x
  3. Step 3: Cross multiply
    187,077.40x = 280,421.70 × 102,707.80
  4. Step 4: Simplify right side
    187,077.40x = 28,801,495,879.26
  5. Step 5: Solve for x
    x = 28,801,495,879.26/187,077.40
  6. Step 6: Final answer
    x = 153,954.97

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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.