Home / 156,975.65-234,971.40-112,688.90

Finding the Fourth Proportional to 156,975.65, 234,971.40 and 112,688.90

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Solution

The fourth proportional to 156,975.65, 234,971.40 and 112,688.90 is: 168,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.65 : 234,971.40 = 112,688.90 : x
  2. Step 2: Convert to fraction form
    156,975.65/234,971.40 = 112,688.90/x
  3. Step 3: Cross multiply
    156,975.65x = 234,971.40 × 112,688.90
  4. Step 4: Simplify right side
    156,975.65x = 26,478,668,597.46
  5. Step 5: Solve for x
    x = 26,478,668,597.46/156,975.65
  6. Step 6: Final answer
    x = 168,680.10

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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.