Home / 113,852.64-157,116.04-66,117.72

Finding the Fourth Proportional to 113,852.64, 157,116.04 and 66,117.72

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Solution

The fourth proportional to 113,852.64, 157,116.04 and 66,117.72 is: 91,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,852.64 : 157,116.04 = 66,117.72 : x
  2. Step 2: Convert to fraction form
    113,852.64/157,116.04 = 66,117.72/x
  3. Step 3: Cross multiply
    113,852.64x = 157,116.04 × 66,117.72
  4. Step 4: Simplify right side
    113,852.64x = 10,388,154,340.23
  5. Step 5: Solve for x
    x = 10,388,154,340.23/113,852.64
  6. Step 6: Final answer
    x = 91,242.10

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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.