Home / 101,370.12-139,885.14-56,045.46

Finding the Fourth Proportional to 101,370.12, 139,885.14 and 56,045.46

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Solution

The fourth proportional to 101,370.12, 139,885.14 and 56,045.46 is: 77,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,370.12 : 139,885.14 = 56,045.46 : x
  2. Step 2: Convert to fraction form
    101,370.12/139,885.14 = 56,045.46/x
  3. Step 3: Cross multiply
    101,370.12x = 139,885.14 × 56,045.46
  4. Step 4: Simplify right side
    101,370.12x = 7,839,927,018.46
  5. Step 5: Solve for x
    x = 7,839,927,018.46/101,370.12
  6. Step 6: Final answer
    x = 77,339.62

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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.