Home / 180,884.02-249,635.73-105,430.90

Finding the Fourth Proportional to 180,884.02, 249,635.73 and 105,430.90

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Solution

The fourth proportional to 180,884.02, 249,635.73 and 105,430.90 is: 145,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,884.02 : 249,635.73 = 105,430.90 : x
  2. Step 2: Convert to fraction form
    180,884.02/249,635.73 = 105,430.90/x
  3. Step 3: Cross multiply
    180,884.02x = 249,635.73 × 105,430.90
  4. Step 4: Simplify right side
    180,884.02x = 26,319,319,686.06
  5. Step 5: Solve for x
    x = 26,319,319,686.06/180,884.02
  6. Step 6: Final answer
    x = 145,503.84

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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.