Home / 105,091.60-157,637.40-103,363.60

Finding the Fourth Proportional to 105,091.60, 157,637.40 and 103,363.60

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Solution

The fourth proportional to 105,091.60, 157,637.40 and 103,363.60 is: 155,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,091.60 : 157,637.40 = 103,363.60 : x
  2. Step 2: Convert to fraction form
    105,091.60/157,637.40 = 103,363.60/x
  3. Step 3: Cross multiply
    105,091.60x = 157,637.40 × 103,363.60
  4. Step 4: Simplify right side
    105,091.60x = 16,293,969,158.64
  5. Step 5: Solve for x
    x = 16,293,969,158.64/105,091.60
  6. Step 6: Final answer
    x = 155,045.40

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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.