Home / 153,699.08-212,072.65-93,301.52

Finding the Fourth Proportional to 153,699.08, 212,072.65 and 93,301.52

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Solution

The fourth proportional to 153,699.08, 212,072.65 and 93,301.52 is: 128,736.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,699.08 : 212,072.65 = 93,301.52 : x
  2. Step 2: Convert to fraction form
    153,699.08/212,072.65 = 93,301.52/x
  3. Step 3: Cross multiply
    153,699.08x = 212,072.65 × 93,301.52
  4. Step 4: Simplify right side
    153,699.08x = 19,786,699,301.81
  5. Step 5: Solve for x
    x = 19,786,699,301.81/153,699.08
  6. Step 6: Final answer
    x = 128,736.62

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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.