Home / 153,050.72-211,199.76-85,063.28

Finding the Fourth Proportional to 153,050.72, 211,199.76 and 85,063.28

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Solution

The fourth proportional to 153,050.72, 211,199.76 and 85,063.28 is: 117,381.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,050.72 : 211,199.76 = 85,063.28 : x
  2. Step 2: Convert to fraction form
    153,050.72/211,199.76 = 85,063.28/x
  3. Step 3: Cross multiply
    153,050.72x = 211,199.76 × 85,063.28
  4. Step 4: Simplify right side
    153,050.72x = 17,965,344,320.81
  5. Step 5: Solve for x
    x = 17,965,344,320.81/153,050.72
  6. Step 6: Final answer
    x = 117,381.64

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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.