Home / 212,071.62-292,659.46-121,428.98

Finding the Fourth Proportional to 212,071.62, 292,659.46 and 121,428.98

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Solution

The fourth proportional to 212,071.62, 292,659.46 and 121,428.98 is: 167,572.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,071.62 : 292,659.46 = 121,428.98 : x
  2. Step 2: Convert to fraction form
    212,071.62/292,659.46 = 121,428.98/x
  3. Step 3: Cross multiply
    212,071.62x = 292,659.46 × 121,428.98
  4. Step 4: Simplify right side
    212,071.62x = 35,537,339,715.15
  5. Step 5: Solve for x
    x = 35,537,339,715.15/212,071.62
  6. Step 6: Final answer
    x = 167,572.35

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1.5x scale

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.