Home / 152,646.81-210,409.26-120,328.76

Finding the Fourth Proportional to 152,646.81, 210,409.26 and 120,328.76

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Solution

The fourth proportional to 152,646.81, 210,409.26 and 120,328.76 is: 165,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,646.81 : 210,409.26 = 120,328.76 : x
  2. Step 2: Convert to fraction form
    152,646.81/210,409.26 = 120,328.76/x
  3. Step 3: Cross multiply
    152,646.81x = 210,409.26 × 120,328.76
  4. Step 4: Simplify right side
    152,646.81x = 25,318,284,296.27
  5. Step 5: Solve for x
    x = 25,318,284,296.27/152,646.81
  6. Step 6: Final answer
    x = 165,861.86

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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.