Home / 152,642.46-210,635.19-85,561.50

Finding the Fourth Proportional to 152,642.46, 210,635.19 and 85,561.50

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Solution

The fourth proportional to 152,642.46, 210,635.19 and 85,561.50 is: 118,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,642.46 : 210,635.19 = 85,561.50 : x
  2. Step 2: Convert to fraction form
    152,642.46/210,635.19 = 85,561.50/x
  3. Step 3: Cross multiply
    152,642.46x = 210,635.19 × 85,561.50
  4. Step 4: Simplify right side
    152,642.46x = 18,022,262,809.19
  5. Step 5: Solve for x
    x = 18,022,262,809.19/152,642.46
  6. Step 6: Final answer
    x = 118,068.48

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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.