Home / 111,973.42-154,543.44-64,242.55

Finding the Fourth Proportional to 111,973.42, 154,543.44 and 64,242.55

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Solution

The fourth proportional to 111,973.42, 154,543.44 and 64,242.55 is: 88,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,973.42 : 154,543.44 = 64,242.55 : x
  2. Step 2: Convert to fraction form
    111,973.42/154,543.44 = 64,242.55/x
  3. Step 3: Cross multiply
    111,973.42x = 154,543.44 × 64,242.55
  4. Step 4: Simplify right side
    111,973.42x = 9,928,264,671.37
  5. Step 5: Solve for x
    x = 9,928,264,671.37/111,973.42
  6. Step 6: Final answer
    x = 88,666.26

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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.