Home / 199,373.32-299,047.02-105,931.72

Finding the Fourth Proportional to 199,373.32, 299,047.02 and 105,931.72

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Solution

The fourth proportional to 199,373.32, 299,047.02 and 105,931.72 is: 158,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,373.32 : 299,047.02 = 105,931.72 : x
  2. Step 2: Convert to fraction form
    199,373.32/299,047.02 = 105,931.72/x
  3. Step 3: Cross multiply
    199,373.32x = 299,047.02 × 105,931.72
  4. Step 4: Simplify right side
    199,373.32x = 31,678,565,189.47
  5. Step 5: Solve for x
    x = 31,678,565,189.47/199,373.32
  6. Step 6: Final answer
    x = 158,890.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.