Home / 113,900.16-157,153.92-98,768.64

Finding the Fourth Proportional to 113,900.16, 157,153.92 and 98,768.64

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Solution

The fourth proportional to 113,900.16, 157,153.92 and 98,768.64 is: 136,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,900.16 : 157,153.92 = 98,768.64 : x
  2. Step 2: Convert to fraction form
    113,900.16/157,153.92 = 98,768.64/x
  3. Step 3: Cross multiply
    113,900.16x = 157,153.92 × 98,768.64
  4. Step 4: Simplify right side
    113,900.16x = 15,521,878,949.07
  5. Step 5: Solve for x
    x = 15,521,878,949.07/113,900.16
  6. Step 6: Final answer
    x = 136,276.18

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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.