Home / 153,016.91-211,168.65-85,036.75

Finding the Fourth Proportional to 153,016.91, 211,168.65 and 85,036.75

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Solution

The fourth proportional to 153,016.91, 211,168.65 and 85,036.75 is: 117,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,016.91 : 211,168.65 = 85,036.75 : x
  2. Step 2: Convert to fraction form
    153,016.91/211,168.65 = 85,036.75/x
  3. Step 3: Cross multiply
    153,016.91x = 211,168.65 × 85,036.75
  4. Step 4: Simplify right side
    153,016.91x = 17,957,095,697.89
  5. Step 5: Solve for x
    x = 17,957,095,697.89/153,016.91
  6. Step 6: Final answer
    x = 117,353.67

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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.