Home / 111,030.16-153,280.80-74,783.44

Finding the Fourth Proportional to 111,030.16, 153,280.80 and 74,783.44

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Solution

The fourth proportional to 111,030.16, 153,280.80 and 74,783.44 is: 103,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,030.16 : 153,280.80 = 74,783.44 : x
  2. Step 2: Convert to fraction form
    111,030.16/153,280.80 = 74,783.44/x
  3. Step 3: Cross multiply
    111,030.16x = 153,280.80 × 74,783.44
  4. Step 4: Simplify right side
    111,030.16x = 11,462,865,509.95
  5. Step 5: Solve for x
    x = 11,462,865,509.95/111,030.16
  6. Step 6: Final answer
    x = 103,241.01

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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.