Home / 158,931.61-219,325.70-87,316.24

Finding the Fourth Proportional to 158,931.61, 219,325.70 and 87,316.24

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Solution

The fourth proportional to 158,931.61, 219,325.70 and 87,316.24 is: 120,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,931.61 : 219,325.70 = 87,316.24 : x
  2. Step 2: Convert to fraction form
    158,931.61/219,325.70 = 87,316.24/x
  3. Step 3: Cross multiply
    158,931.61x = 219,325.70 × 87,316.24
  4. Step 4: Simplify right side
    158,931.61x = 19,150,695,624.38
  5. Step 5: Solve for x
    x = 19,150,695,624.38/158,931.61
  6. Step 6: Final answer
    x = 120,496.46

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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.