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Finding the Fourth Proportional to 153,699.73, 212,069.41 and 93,268.94

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Solution

The fourth proportional to 153,699.73, 212,069.41 and 93,268.94 is: 128,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,699.73 : 212,069.41 = 93,268.94 : x
  2. Step 2: Convert to fraction form
    153,699.73/212,069.41 = 93,268.94/x
  3. Step 3: Cross multiply
    153,699.73x = 212,069.41 × 93,268.94
  4. Step 4: Simplify right side
    153,699.73x = 19,779,487,783.61
  5. Step 5: Solve for x
    x = 19,779,487,783.61/153,699.73
  6. Step 6: Final answer
    x = 128,689.15

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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.