Home / 137,328.65-189,532.73-99,211.51

Finding the Fourth Proportional to 137,328.65, 189,532.73 and 99,211.51

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Solution

The fourth proportional to 137,328.65, 189,532.73 and 99,211.51 is: 136,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,328.65 : 189,532.73 = 99,211.51 : x
  2. Step 2: Convert to fraction form
    137,328.65/189,532.73 = 99,211.51/x
  3. Step 3: Cross multiply
    137,328.65x = 189,532.73 × 99,211.51
  4. Step 4: Simplify right side
    137,328.65x = 18,803,828,822.67
  5. Step 5: Solve for x
    x = 18,803,828,822.67/137,328.65
  6. Step 6: Final answer
    x = 136,925.75

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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.