Home / 153,162.83-211,370.10-85,182.67

Finding the Fourth Proportional to 153,162.83, 211,370.10 and 85,182.67

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Solution

The fourth proportional to 153,162.83, 211,370.10 and 85,182.67 is: 117,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,162.83 : 211,370.10 = 85,182.67 : x
  2. Step 2: Convert to fraction form
    153,162.83/211,370.10 = 85,182.67/x
  3. Step 3: Cross multiply
    153,162.83x = 211,370.10 × 85,182.67
  4. Step 4: Simplify right side
    153,162.83x = 18,005,069,420.94
  5. Step 5: Solve for x
    x = 18,005,069,420.94/153,162.83
  6. Step 6: Final answer
    x = 117,555.08

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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.