Home / 211,146.56-316,569.38-98,765.52

Finding the Fourth Proportional to 211,146.56, 316,569.38 and 98,765.52

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Solution

The fourth proportional to 211,146.56, 316,569.38 and 98,765.52 is: 148,077.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.56 : 316,569.38 = 98,765.52 : x
  2. Step 2: Convert to fraction form
    211,146.56/316,569.38 = 98,765.52/x
  3. Step 3: Cross multiply
    211,146.56x = 316,569.38 × 98,765.52
  4. Step 4: Simplify right side
    211,146.56x = 31,266,137,750.81
  5. Step 5: Solve for x
    x = 31,266,137,750.81/211,146.56
  6. Step 6: Final answer
    x = 148,077.89

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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.