Home / 118,820.61-163,946.91-70,437.78

Finding the Fourth Proportional to 118,820.61, 163,946.91 and 70,437.78

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Solution

The fourth proportional to 118,820.61, 163,946.91 and 70,437.78 is: 97,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,820.61 : 163,946.91 = 70,437.78 : x
  2. Step 2: Convert to fraction form
    118,820.61/163,946.91 = 70,437.78/x
  3. Step 3: Cross multiply
    118,820.61x = 163,946.91 × 70,437.78
  4. Step 4: Simplify right side
    118,820.61x = 11,548,056,378.26
  5. Step 5: Solve for x
    x = 11,548,056,378.26/118,820.61
  6. Step 6: Final answer
    x = 97,189.00

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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.