Home / 140,036.64-193,248.60-76,374.42

Finding the Fourth Proportional to 140,036.64, 193,248.60 and 76,374.42

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Solution

The fourth proportional to 140,036.64, 193,248.60 and 76,374.42 is: 105,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,036.64 : 193,248.60 = 76,374.42 : x
  2. Step 2: Convert to fraction form
    140,036.64/193,248.60 = 76,374.42/x
  3. Step 3: Cross multiply
    140,036.64x = 193,248.60 × 76,374.42
  4. Step 4: Simplify right side
    140,036.64x = 14,759,249,740.81
  5. Step 5: Solve for x
    x = 14,759,249,740.81/140,036.64
  6. Step 6: Final answer
    x = 105,395.63

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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.