Home / 103,768.02-143,210.63-63,508.59

Finding the Fourth Proportional to 103,768.02, 143,210.63 and 63,508.59

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Solution

The fourth proportional to 103,768.02, 143,210.63 and 63,508.59 is: 87,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,768.02 : 143,210.63 = 63,508.59 : x
  2. Step 2: Convert to fraction form
    103,768.02/143,210.63 = 63,508.59/x
  3. Step 3: Cross multiply
    103,768.02x = 143,210.63 × 63,508.59
  4. Step 4: Simplify right side
    103,768.02x = 9,095,105,343.08
  5. Step 5: Solve for x
    x = 9,095,105,343.08/103,768.02
  6. Step 6: Final answer
    x = 87,648.44

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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.