Home / 152,429.24-210,013.63-100,654.40

Finding the Fourth Proportional to 152,429.24, 210,013.63 and 100,654.40

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Solution

The fourth proportional to 152,429.24, 210,013.63 and 100,654.40 is: 138,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,429.24 : 210,013.63 = 100,654.40 : x
  2. Step 2: Convert to fraction form
    152,429.24/210,013.63 = 100,654.40/x
  3. Step 3: Cross multiply
    152,429.24x = 210,013.63 × 100,654.40
  4. Step 4: Simplify right side
    152,429.24x = 21,138,795,011.54
  5. Step 5: Solve for x
    x = 21,138,795,011.54/152,429.24
  6. Step 6: Final answer
    x = 138,679.39

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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.