Home / 142,938.40-214,407.60-49,393.12

Finding the Fourth Proportional to 142,938.40, 214,407.60 and 49,393.12

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Solution

The fourth proportional to 142,938.40, 214,407.60 and 49,393.12 is: 74,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,938.40 : 214,407.60 = 49,393.12 : x
  2. Step 2: Convert to fraction form
    142,938.40/214,407.60 = 49,393.12/x
  3. Step 3: Cross multiply
    142,938.40x = 214,407.60 × 49,393.12
  4. Step 4: Simplify right side
    142,938.40x = 10,590,260,315.71
  5. Step 5: Solve for x
    x = 10,590,260,315.71/142,938.40
  6. Step 6: Final answer
    x = 74,089.68

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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.