Home / 106,783.07-147,391.38-70,511.00

Finding the Fourth Proportional to 106,783.07, 147,391.38 and 70,511.00

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Solution

The fourth proportional to 106,783.07, 147,391.38 and 70,511.00 is: 97,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,783.07 : 147,391.38 = 70,511.00 : x
  2. Step 2: Convert to fraction form
    106,783.07/147,391.38 = 70,511.00/x
  3. Step 3: Cross multiply
    106,783.07x = 147,391.38 × 70,511.00
  4. Step 4: Simplify right side
    106,783.07x = 10,392,712,858.22
  5. Step 5: Solve for x
    x = 10,392,712,858.22/106,783.07
  6. Step 6: Final answer
    x = 97,325.48

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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.