Home / 156,430.51-234,689.51-51,323.29

Finding the Fourth Proportional to 156,430.51, 234,689.51 and 51,323.29

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Solution

The fourth proportional to 156,430.51, 234,689.51 and 51,323.29 is: 76,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,430.51 : 234,689.51 = 51,323.29 : x
  2. Step 2: Convert to fraction form
    156,430.51/234,689.51 = 51,323.29/x
  3. Step 3: Cross multiply
    156,430.51x = 234,689.51 × 51,323.29
  4. Step 4: Simplify right side
    156,430.51x = 12,045,037,781.69
  5. Step 5: Solve for x
    x = 12,045,037,781.69/156,430.51
  6. Step 6: Final answer
    x = 76,999.29

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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.