Home / 140,293.12-210,355.74-65,430.28

Finding the Fourth Proportional to 140,293.12, 210,355.74 and 65,430.28

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Solution

The fourth proportional to 140,293.12, 210,355.74 and 65,430.28 is: 98,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,293.12 : 210,355.74 = 65,430.28 : x
  2. Step 2: Convert to fraction form
    140,293.12/210,355.74 = 65,430.28/x
  3. Step 3: Cross multiply
    140,293.12x = 210,355.74 × 65,430.28
  4. Step 4: Simplify right side
    140,293.12x = 13,763,634,967.81
  5. Step 5: Solve for x
    x = 13,763,634,967.81/140,293.12
  6. Step 6: Final answer
    x = 98,106.27

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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.