Home / 131,426.64-181,368.59-74,838.02

Finding the Fourth Proportional to 131,426.64, 181,368.59 and 74,838.02

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Solution

The fourth proportional to 131,426.64, 181,368.59 and 74,838.02 is: 103,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.64 : 181,368.59 = 74,838.02 : x
  2. Step 2: Convert to fraction form
    131,426.64/181,368.59 = 74,838.02/x
  3. Step 3: Cross multiply
    131,426.64x = 181,368.59 × 74,838.02
  4. Step 4: Simplify right side
    131,426.64x = 13,573,264,884.76
  5. Step 5: Solve for x
    x = 13,573,264,884.76/131,426.64
  6. Step 6: Final answer
    x = 103,276.36

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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.