Home / 111,811.40-154,248.36-99,077.48

Finding the Fourth Proportional to 111,811.40, 154,248.36 and 99,077.48

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Solution

The fourth proportional to 111,811.40, 154,248.36 and 99,077.48 is: 136,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,811.40 : 154,248.36 = 99,077.48 : x
  2. Step 2: Convert to fraction form
    111,811.40/154,248.36 = 99,077.48/x
  3. Step 3: Cross multiply
    111,811.40x = 154,248.36 × 99,077.48
  4. Step 4: Simplify right side
    111,811.40x = 15,282,538,802.93
  5. Step 5: Solve for x
    x = 15,282,538,802.93/111,811.40
  6. Step 6: Final answer
    x = 136,681.40

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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.