Home / 189,774.34-261,718.98-157,457.80

Finding the Fourth Proportional to 189,774.34, 261,718.98 and 157,457.80

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Solution

The fourth proportional to 189,774.34, 261,718.98 and 157,457.80 is: 217,151.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,774.34 : 261,718.98 = 157,457.80 : x
  2. Step 2: Convert to fraction form
    189,774.34/261,718.98 = 157,457.80/x
  3. Step 3: Cross multiply
    189,774.34x = 261,718.98 × 157,457.80
  4. Step 4: Simplify right side
    189,774.34x = 41,209,694,809.04
  5. Step 5: Solve for x
    x = 41,209,694,809.04/189,774.34
  6. Step 6: Final answer
    x = 217,151.04

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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.