Home / 111,555.02-153,901.40-71,258.34

Finding the Fourth Proportional to 111,555.02, 153,901.40 and 71,258.34

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Solution

The fourth proportional to 111,555.02, 153,901.40 and 71,258.34 is: 98,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,555.02 : 153,901.40 = 71,258.34 : x
  2. Step 2: Convert to fraction form
    111,555.02/153,901.40 = 71,258.34/x
  3. Step 3: Cross multiply
    111,555.02x = 153,901.40 × 71,258.34
  4. Step 4: Simplify right side
    111,555.02x = 10,966,758,287.68
  5. Step 5: Solve for x
    x = 10,966,758,287.68/111,555.02
  6. Step 6: Final answer
    x = 98,308.07

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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.