Home / 152,880.12-210,967.44-84,901.40

Finding the Fourth Proportional to 152,880.12, 210,967.44 and 84,901.40

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Solution

The fourth proportional to 152,880.12, 210,967.44 and 84,901.40 is: 117,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,880.12 : 210,967.44 = 84,901.40 : x
  2. Step 2: Convert to fraction form
    152,880.12/210,967.44 = 84,901.40/x
  3. Step 3: Cross multiply
    152,880.12x = 210,967.44 × 84,901.40
  4. Step 4: Simplify right side
    152,880.12x = 17,911,431,010.42
  5. Step 5: Solve for x
    x = 17,911,431,010.42/152,880.12
  6. Step 6: Final answer
    x = 117,159.97

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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.