Home / 176,428.64-243,417.89-99,935.58

Finding the Fourth Proportional to 176,428.64, 243,417.89 and 99,935.58

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Solution

The fourth proportional to 176,428.64, 243,417.89 and 99,935.58 is: 137,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,428.64 : 243,417.89 = 99,935.58 : x
  2. Step 2: Convert to fraction form
    176,428.64/243,417.89 = 99,935.58/x
  3. Step 3: Cross multiply
    176,428.64x = 243,417.89 × 99,935.58
  4. Step 4: Simplify right side
    176,428.64x = 24,326,108,019.53
  5. Step 5: Solve for x
    x = 24,326,108,019.53/176,428.64
  6. Step 6: Final answer
    x = 137,880.72

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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.