Home / 104,257.38-143,875.95-56,511.07

Finding the Fourth Proportional to 104,257.38, 143,875.95 and 56,511.07

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Solution

The fourth proportional to 104,257.38, 143,875.95 and 56,511.07 is: 77,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,257.38 : 143,875.95 = 56,511.07 : x
  2. Step 2: Convert to fraction form
    104,257.38/143,875.95 = 56,511.07/x
  3. Step 3: Cross multiply
    104,257.38x = 143,875.95 × 56,511.07
  4. Step 4: Simplify right side
    104,257.38x = 8,130,583,881.77
  5. Step 5: Solve for x
    x = 8,130,583,881.77/104,257.38
  6. Step 6: Final answer
    x = 77,985.69

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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.