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Finding the Fourth Proportional to 152,187.80, 210,025.35 and 84,203.67

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Solution

The fourth proportional to 152,187.80, 210,025.35 and 84,203.67 is: 116,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,187.80 : 210,025.35 = 84,203.67 : x
  2. Step 2: Convert to fraction form
    152,187.80/210,025.35 = 84,203.67/x
  3. Step 3: Cross multiply
    152,187.80x = 210,025.35 × 84,203.67
  4. Step 4: Simplify right side
    152,187.80x = 17,684,904,842.02
  5. Step 5: Solve for x
    x = 17,684,904,842.02/152,187.80
  6. Step 6: Final answer
    x = 116,204.48

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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.