Home / 103,779.10-155,667.05-70,416.22

Finding the Fourth Proportional to 103,779.10, 155,667.05 and 70,416.22

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Solution

The fourth proportional to 103,779.10, 155,667.05 and 70,416.22 is: 105,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,779.10 : 155,667.05 = 70,416.22 : x
  2. Step 2: Convert to fraction form
    103,779.10/155,667.05 = 70,416.22/x
  3. Step 3: Cross multiply
    103,779.10x = 155,667.05 × 70,416.22
  4. Step 4: Simplify right side
    103,779.10x = 10,961,485,239.55
  5. Step 5: Solve for x
    x = 10,961,485,239.55/103,779.10
  6. Step 6: Final answer
    x = 105,623.24

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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.