Home / 147,509.10-203,510.06-87,049.50

Finding the Fourth Proportional to 147,509.10, 203,510.06 and 87,049.50

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Solution

The fourth proportional to 147,509.10, 203,510.06 and 87,049.50 is: 120,097.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,509.10 : 203,510.06 = 87,049.50 : x
  2. Step 2: Convert to fraction form
    147,509.10/203,510.06 = 87,049.50/x
  3. Step 3: Cross multiply
    147,509.10x = 203,510.06 × 87,049.50
  4. Step 4: Simplify right side
    147,509.10x = 17,715,448,967.97
  5. Step 5: Solve for x
    x = 17,715,448,967.97/147,509.10
  6. Step 6: Final answer
    x = 120,097.33

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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.