Home / 161,802.95-223,289.11-90,187.51

Finding the Fourth Proportional to 161,802.95, 223,289.11 and 90,187.51

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Solution

The fourth proportional to 161,802.95, 223,289.11 and 90,187.51 is: 124,459.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,802.95 : 223,289.11 = 90,187.51 : x
  2. Step 2: Convert to fraction form
    161,802.95/223,289.11 = 90,187.51/x
  3. Step 3: Cross multiply
    161,802.95x = 223,289.11 × 90,187.51
  4. Step 4: Simplify right side
    161,802.95x = 20,137,889,173.77
  5. Step 5: Solve for x
    x = 20,137,889,173.77/161,802.95
  6. Step 6: Final answer
    x = 124,459.34

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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.