Home / 157,277.12-216,891.54-105,710.90

Finding the Fourth Proportional to 157,277.12, 216,891.54 and 105,710.90

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Solution

The fourth proportional to 157,277.12, 216,891.54 and 105,710.90 is: 145,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,277.12 : 216,891.54 = 105,710.90 : x
  2. Step 2: Convert to fraction form
    157,277.12/216,891.54 = 105,710.90/x
  3. Step 3: Cross multiply
    157,277.12x = 216,891.54 × 105,710.90
  4. Step 4: Simplify right side
    157,277.12x = 22,927,798,811.33
  5. Step 5: Solve for x
    x = 22,927,798,811.33/157,277.12
  6. Step 6: Final answer
    x = 145,779.62

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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.