Home / 104,985.30-157,430.58-30,088.32

Finding the Fourth Proportional to 104,985.30, 157,430.58 and 30,088.32

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Solution

The fourth proportional to 104,985.30, 157,430.58 and 30,088.32 is: 45,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.30 : 157,430.58 = 30,088.32 : x
  2. Step 2: Convert to fraction form
    104,985.30/157,430.58 = 30,088.32/x
  3. Step 3: Cross multiply
    104,985.30x = 157,430.58 × 30,088.32
  4. Step 4: Simplify right side
    104,985.30x = 4,736,821,668.83
  5. Step 5: Solve for x
    x = 4,736,821,668.83/104,985.30
  6. Step 6: Final answer
    x = 45,118.90

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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.