Home / 112,720.68-155,554.74-61,038.36

Finding the Fourth Proportional to 112,720.68, 155,554.74 and 61,038.36

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Solution

The fourth proportional to 112,720.68, 155,554.74 and 61,038.36 is: 84,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,720.68 : 155,554.74 = 61,038.36 : x
  2. Step 2: Convert to fraction form
    112,720.68/155,554.74 = 61,038.36/x
  3. Step 3: Cross multiply
    112,720.68x = 155,554.74 × 61,038.36
  4. Step 4: Simplify right side
    112,720.68x = 9,494,806,219.83
  5. Step 5: Solve for x
    x = 9,494,806,219.83/112,720.68
  6. Step 6: Final answer
    x = 84,233.05

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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.