Home / 132,812.81-183,283.94-72,386.77

Finding the Fourth Proportional to 132,812.81, 183,283.94 and 72,386.77

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Solution

The fourth proportional to 132,812.81, 183,283.94 and 72,386.77 is: 99,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,812.81 : 183,283.94 = 72,386.77 : x
  2. Step 2: Convert to fraction form
    132,812.81/183,283.94 = 72,386.77/x
  3. Step 3: Cross multiply
    132,812.81x = 183,283.94 × 72,386.77
  4. Step 4: Simplify right side
    132,812.81x = 13,267,332,409.47
  5. Step 5: Solve for x
    x = 13,267,332,409.47/132,812.81
  6. Step 6: Final answer
    x = 99,894.98

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1.5x scale

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.