Home / 142,225.07-196,276.26-81,795.67

Finding the Fourth Proportional to 142,225.07, 196,276.26 and 81,795.67

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Solution

The fourth proportional to 142,225.07, 196,276.26 and 81,795.67 is: 112,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,225.07 : 196,276.26 = 81,795.67 : x
  2. Step 2: Convert to fraction form
    142,225.07/196,276.26 = 81,795.67/x
  3. Step 3: Cross multiply
    142,225.07x = 196,276.26 × 81,795.67
  4. Step 4: Simplify right side
    142,225.07x = 16,054,549,111.89
  5. Step 5: Solve for x
    x = 16,054,549,111.89/142,225.07
  6. Step 6: Final answer
    x = 112,881.29

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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.