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Finding the Fourth Proportional to 113,971.49, 157,280.51 and 63,670.49

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Solution

The fourth proportional to 113,971.49, 157,280.51 and 63,670.49 is: 87,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,971.49 : 157,280.51 = 63,670.49 : x
  2. Step 2: Convert to fraction form
    113,971.49/157,280.51 = 63,670.49/x
  3. Step 3: Cross multiply
    113,971.49x = 157,280.51 × 63,670.49
  4. Step 4: Simplify right side
    113,971.49x = 10,014,127,139.15
  5. Step 5: Solve for x
    x = 10,014,127,139.15/113,971.49
  6. Step 6: Final answer
    x = 87,865.19

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1.5x scale

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.