Home / 103,330.08-155,063.16-56,615.76

Finding the Fourth Proportional to 103,330.08, 155,063.16 and 56,615.76

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Solution

The fourth proportional to 103,330.08, 155,063.16 and 56,615.76 is: 84,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,330.08 : 155,063.16 = 56,615.76 : x
  2. Step 2: Convert to fraction form
    103,330.08/155,063.16 = 56,615.76/x
  3. Step 3: Cross multiply
    103,330.08x = 155,063.16 × 56,615.76
  4. Step 4: Simplify right side
    103,330.08x = 8,779,018,651.40
  5. Step 5: Solve for x
    x = 8,779,018,651.40/103,330.08
  6. Step 6: Final answer
    x = 84,960.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.