Home / 161,965.23-223,510.48-89,368.77

Finding the Fourth Proportional to 161,965.23, 223,510.48 and 89,368.77

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Solution

The fourth proportional to 161,965.23, 223,510.48 and 89,368.77 is: 123,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,965.23 : 223,510.48 = 89,368.77 : x
  2. Step 2: Convert to fraction form
    161,965.23/223,510.48 = 89,368.77/x
  3. Step 3: Cross multiply
    161,965.23x = 223,510.48 × 89,368.77
  4. Step 4: Simplify right side
    161,965.23x = 19,974,856,679.71
  5. Step 5: Solve for x
    x = 19,974,856,679.71/161,965.23
  6. Step 6: Final answer
    x = 123,328.05

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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.