Home / 152,236.36-210,081-84,256.20

Finding the Fourth Proportional to 152,236.36, 210,081 and 84,256.20

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Solution

The fourth proportional to 152,236.36, 210,081 and 84,256.20 is: 116,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,236.36 : 210,081 = 84,256.20 : x
  2. Step 2: Convert to fraction form
    152,236.36/210,081 = 84,256.20/x
  3. Step 3: Cross multiply
    152,236.36x = 210,081 × 84,256.20
  4. Step 4: Simplify right side
    152,236.36x = 17,700,626,752.20
  5. Step 5: Solve for x
    x = 17,700,626,752.20/152,236.36
  6. Step 6: Final answer
    x = 116,270.69

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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.