Home / 156,987.19-235,480.95-57,148.21

Finding the Fourth Proportional to 156,987.19, 235,480.95 and 57,148.21

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Solution

The fourth proportional to 156,987.19, 235,480.95 and 57,148.21 is: 85,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.19 : 235,480.95 = 57,148.21 : x
  2. Step 2: Convert to fraction form
    156,987.19/235,480.95 = 57,148.21/x
  3. Step 3: Cross multiply
    156,987.19x = 235,480.95 × 57,148.21
  4. Step 4: Simplify right side
    156,987.19x = 13,457,314,781.60
  5. Step 5: Solve for x
    x = 13,457,314,781.60/156,987.19
  6. Step 6: Final answer
    x = 85,722.38

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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.