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Finding the Fourth Proportional to 155,955.60, 234,014.40 and 72,849.60

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Solution

The fourth proportional to 155,955.60, 234,014.40 and 72,849.60 is: 109,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,955.60 : 234,014.40 = 72,849.60 : x
  2. Step 2: Convert to fraction form
    155,955.60/234,014.40 = 72,849.60/x
  3. Step 3: Cross multiply
    155,955.60x = 234,014.40 × 72,849.60
  4. Step 4: Simplify right side
    155,955.60x = 17,047,855,434.24
  5. Step 5: Solve for x
    x = 17,047,855,434.24/155,955.60
  6. Step 6: Final answer
    x = 109,312.24

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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.