Home / 152,320.91-210,210.66-84,345.30

Finding the Fourth Proportional to 152,320.91, 210,210.66 and 84,345.30

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Solution

The fourth proportional to 152,320.91, 210,210.66 and 84,345.30 is: 116,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,320.91 : 210,210.66 = 84,345.30 : x
  2. Step 2: Convert to fraction form
    152,320.91/210,210.66 = 84,345.30/x
  3. Step 3: Cross multiply
    152,320.91x = 210,210.66 × 84,345.30
  4. Step 4: Simplify right side
    152,320.91x = 17,730,281,180.90
  5. Step 5: Solve for x
    x = 17,730,281,180.90/152,320.91
  6. Step 6: Final answer
    x = 116,400.84

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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.