Home / 113,918.90-157,416.45-98,762.90

Finding the Fourth Proportional to 113,918.90, 157,416.45 and 98,762.90

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Solution

The fourth proportional to 113,918.90, 157,416.45 and 98,762.90 is: 136,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,918.90 : 157,416.45 = 98,762.90 : x
  2. Step 2: Convert to fraction form
    113,918.90/157,416.45 = 98,762.90/x
  3. Step 3: Cross multiply
    113,918.90x = 157,416.45 × 98,762.90
  4. Step 4: Simplify right side
    113,918.90x = 15,546,905,109.71
  5. Step 5: Solve for x
    x = 15,546,905,109.71/113,918.90
  6. Step 6: Final answer
    x = 136,473.45

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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.