Home / 101,603.36-140,281.13-63,421.07

Finding the Fourth Proportional to 101,603.36, 140,281.13 and 63,421.07

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Solution

The fourth proportional to 101,603.36, 140,281.13 and 63,421.07 is: 87,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,603.36 : 140,281.13 = 63,421.07 : x
  2. Step 2: Convert to fraction form
    101,603.36/140,281.13 = 63,421.07/x
  3. Step 3: Cross multiply
    101,603.36x = 140,281.13 × 63,421.07
  4. Step 4: Simplify right side
    101,603.36x = 8,896,778,822.56
  5. Step 5: Solve for x
    x = 8,896,778,822.56/101,603.36
  6. Step 6: Final answer
    x = 87,563.82

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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.