Home / 104,938.60-157,446.30-42,615.40

Finding the Fourth Proportional to 104,938.60, 157,446.30 and 42,615.40

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Solution

The fourth proportional to 104,938.60, 157,446.30 and 42,615.40 is: 63,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,938.60 : 157,446.30 = 42,615.40 : x
  2. Step 2: Convert to fraction form
    104,938.60/157,446.30 = 42,615.40/x
  3. Step 3: Cross multiply
    104,938.60x = 157,446.30 × 42,615.40
  4. Step 4: Simplify right side
    104,938.60x = 6,709,637,053.02
  5. Step 5: Solve for x
    x = 6,709,637,053.02/104,938.60
  6. Step 6: Final answer
    x = 63,938.69

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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.