Home / 161,870.40-223,369.56-90,254.16

Finding the Fourth Proportional to 161,870.40, 223,369.56 and 90,254.16

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Solution

The fourth proportional to 161,870.40, 223,369.56 and 90,254.16 is: 124,544.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,870.40 : 223,369.56 = 90,254.16 : x
  2. Step 2: Convert to fraction form
    161,870.40/223,369.56 = 90,254.16/x
  3. Step 3: Cross multiply
    161,870.40x = 223,369.56 × 90,254.16
  4. Step 4: Simplify right side
    161,870.40x = 20,160,032,007.37
  5. Step 5: Solve for x
    x = 20,160,032,007.37/161,870.40
  6. Step 6: Final answer
    x = 124,544.28

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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.