Home / 153,325.12-211,587.05-85,341.01

Finding the Fourth Proportional to 153,325.12, 211,587.05 and 85,341.01

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Solution

The fourth proportional to 153,325.12, 211,587.05 and 85,341.01 is: 117,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,325.12 : 211,587.05 = 85,341.01 : x
  2. Step 2: Convert to fraction form
    153,325.12/211,587.05 = 85,341.01/x
  3. Step 3: Cross multiply
    153,325.12x = 211,587.05 × 85,341.01
  4. Step 4: Simplify right side
    153,325.12x = 18,057,052,549.92
  5. Step 5: Solve for x
    x = 18,057,052,549.92/153,325.12
  6. Step 6: Final answer
    x = 117,769.69

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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.