Home / 152,622.75-210,620-84,646.04

Finding the Fourth Proportional to 152,622.75, 210,620 and 84,646.04

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Solution

The fourth proportional to 152,622.75, 210,620 and 84,646.04 is: 116,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,622.75 : 210,620 = 84,646.04 : x
  2. Step 2: Convert to fraction form
    152,622.75/210,620 = 84,646.04/x
  3. Step 3: Cross multiply
    152,622.75x = 210,620 × 84,646.04
  4. Step 4: Simplify right side
    152,622.75x = 17,828,148,944.80
  5. Step 5: Solve for x
    x = 17,828,148,944.80/152,622.75
  6. Step 6: Final answer
    x = 116,811.87

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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.