Home / 103,730.64-143,151.12-63,443.67

Finding the Fourth Proportional to 103,730.64, 143,151.12 and 63,443.67

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Solution

The fourth proportional to 103,730.64, 143,151.12 and 63,443.67 is: 87,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,730.64 : 143,151.12 = 63,443.67 : x
  2. Step 2: Convert to fraction form
    103,730.64/143,151.12 = 63,443.67/x
  3. Step 3: Cross multiply
    103,730.64x = 143,151.12 × 63,443.67
  4. Step 4: Simplify right side
    103,730.64x = 9,082,032,417.41
  5. Step 5: Solve for x
    x = 9,082,032,417.41/103,730.64
  6. Step 6: Final answer
    x = 87,554.00

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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.