Home / 152,878.31-210,979.09-84,895.55

Finding the Fourth Proportional to 152,878.31, 210,979.09 and 84,895.55

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Solution

The fourth proportional to 152,878.31, 210,979.09 and 84,895.55 is: 117,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,878.31 : 210,979.09 = 84,895.55 : x
  2. Step 2: Convert to fraction form
    152,878.31/210,979.09 = 84,895.55/x
  3. Step 3: Cross multiply
    152,878.31x = 210,979.09 × 84,895.55
  4. Step 4: Simplify right side
    152,878.31x = 17,911,185,884.05
  5. Step 5: Solve for x
    x = 17,911,185,884.05/152,878.31
  6. Step 6: Final answer
    x = 117,159.76

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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.