Home / 153,429.14-211,732.28-85,459.15

Finding the Fourth Proportional to 153,429.14, 211,732.28 and 85,459.15

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Solution

The fourth proportional to 153,429.14, 211,732.28 and 85,459.15 is: 117,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,429.14 : 211,732.28 = 85,459.15 : x
  2. Step 2: Convert to fraction form
    153,429.14/211,732.28 = 85,459.15/x
  3. Step 3: Cross multiply
    153,429.14x = 211,732.28 × 85,459.15
  4. Step 4: Simplify right side
    153,429.14x = 18,094,460,834.20
  5. Step 5: Solve for x
    x = 18,094,460,834.20/153,429.14
  6. Step 6: Final answer
    x = 117,933.67

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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.