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Finding the Fourth Proportional to 134,598, 185,749.08 and 74,985.84

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Solution

The fourth proportional to 134,598, 185,749.08 and 74,985.84 is: 103,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,598 : 185,749.08 = 74,985.84 : x
  2. Step 2: Convert to fraction form
    134,598/185,749.08 = 74,985.84/x
  3. Step 3: Cross multiply
    134,598x = 185,749.08 × 74,985.84
  4. Step 4: Simplify right side
    134,598x = 13,928,550,793.03
  5. Step 5: Solve for x
    x = 13,928,550,793.03/134,598
  6. Step 6: Final answer
    x = 103,482.60

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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.