Home / 156,975.88-216,706.98-121,085.32

Finding the Fourth Proportional to 156,975.88, 216,706.98 and 121,085.32

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Solution

The fourth proportional to 156,975.88, 216,706.98 and 121,085.32 is: 167,159.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.88 : 216,706.98 = 121,085.32 : x
  2. Step 2: Convert to fraction form
    156,975.88/216,706.98 = 121,085.32/x
  3. Step 3: Cross multiply
    156,975.88x = 216,706.98 × 121,085.32
  4. Step 4: Simplify right side
    156,975.88x = 26,240,034,019.53
  5. Step 5: Solve for x
    x = 26,240,034,019.53/156,975.88
  6. Step 6: Final answer
    x = 167,159.66

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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.