Home / 112,603.77-155,390.81-61,616.30

Finding the Fourth Proportional to 112,603.77, 155,390.81 and 61,616.30

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Solution

The fourth proportional to 112,603.77, 155,390.81 and 61,616.30 is: 85,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,603.77 : 155,390.81 = 61,616.30 : x
  2. Step 2: Convert to fraction form
    112,603.77/155,390.81 = 61,616.30/x
  3. Step 3: Cross multiply
    112,603.77x = 155,390.81 × 61,616.30
  4. Step 4: Simplify right side
    112,603.77x = 9,574,605,681.17
  5. Step 5: Solve for x
    x = 9,574,605,681.17/112,603.77
  6. Step 6: Final answer
    x = 85,029.18

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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.