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Finding the Fourth Proportional to 152,879.42, 210,966.54 and 84,900.71

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Solution

The fourth proportional to 152,879.42, 210,966.54 and 84,900.71 is: 117,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,879.42 : 210,966.54 = 84,900.71 : x
  2. Step 2: Convert to fraction form
    152,879.42/210,966.54 = 84,900.71/x
  3. Step 3: Cross multiply
    152,879.42x = 210,966.54 × 84,900.71
  4. Step 4: Simplify right side
    152,879.42x = 17,911,209,032.24
  5. Step 5: Solve for x
    x = 17,911,209,032.24/152,879.42
  6. Step 6: Final answer
    x = 117,159.06

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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.