Home / 112,417.84-155,131.86-61,429.36

Finding the Fourth Proportional to 112,417.84, 155,131.86 and 61,429.36

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Solution

The fourth proportional to 112,417.84, 155,131.86 and 61,429.36 is: 84,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,417.84 : 155,131.86 = 61,429.36 : x
  2. Step 2: Convert to fraction form
    112,417.84/155,131.86 = 61,429.36/x
  3. Step 3: Cross multiply
    112,417.84x = 155,131.86 × 61,429.36
  4. Step 4: Simplify right side
    112,417.84x = 9,529,650,875.41
  5. Step 5: Solve for x
    x = 9,529,650,875.41/112,417.84
  6. Step 6: Final answer
    x = 84,769.92

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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.