Home / 112,472.51-154,385.87-99,440.21

Finding the Fourth Proportional to 112,472.51, 154,385.87 and 99,440.21

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Solution

The fourth proportional to 112,472.51, 154,385.87 and 99,440.21 is: 136,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,472.51 : 154,385.87 = 99,440.21 : x
  2. Step 2: Convert to fraction form
    112,472.51/154,385.87 = 99,440.21/x
  3. Step 3: Cross multiply
    112,472.51x = 154,385.87 × 99,440.21
  4. Step 4: Simplify right side
    112,472.51x = 15,352,163,048.47
  5. Step 5: Solve for x
    x = 15,352,163,048.47/112,472.51
  6. Step 6: Final answer
    x = 136,497.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.