Home / 145,869.91-201,320.24-85,464.67

Finding the Fourth Proportional to 145,869.91, 201,320.24 and 85,464.67

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Solution

The fourth proportional to 145,869.91, 201,320.24 and 85,464.67 is: 117,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,869.91 : 201,320.24 = 85,464.67 : x
  2. Step 2: Convert to fraction form
    145,869.91/201,320.24 = 85,464.67/x
  3. Step 3: Cross multiply
    145,869.91x = 201,320.24 × 85,464.67
  4. Step 4: Simplify right side
    145,869.91x = 17,205,767,322.77
  5. Step 5: Solve for x
    x = 17,205,767,322.77/145,869.91
  6. Step 6: Final answer
    x = 117,952.82

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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.